Kojic acid is an ingredient that deserves respect. It can be a useful part of a routine aimed at a more even-looking complexion, and it can also irritate skin if used carelessly. This page explains how kojic acid is generally used in cosmetics, the precautions that matter, and what we are waiting to confirm before this product goes on sale.
Where does kojic acid come from?
Kojic acid is produced by certain fungi during fermentation, including during the production of some traditional Japanese foods. In cosmetics, it is used because it can interfere with tyrosinase, an enzyme involved in making melanin. In practical terms, that is why it appears in products positioned for dark marks and uneven-looking tone. A review in *Biomedicine and Pharmacotherapy* covers its cosmetic applications and the formulation challenges it presents (Saeedi and colleagues, 2019).
Why formulation matters
Kojic acid can be unstable and may discolour when exposed to light and air. Some formulas use derivatives, such as kojic dipalmitate, to improve stability. Regulators in some regions have also set limits on how much can be used in certain products. Most importantly for you, a stronger product is not automatically a better one. Higher concentrations can increase the risk of irritation and sensitivity without any guarantee of better results.
We will publish the form and concentration used in this product on its label. We are not quoting figures in advance.
Kojic Acid and Kojiclear
If you are comparing this product with Kojiclear, the difference will become clear once both ingredient lists are published. For now, the simplest distinction is the name: this product is named for the ingredient, whereas Kojiclear is a signature product whose formula has not been confirmed yet.
What can you realistically expect?
Products in this category may help dark marks look less noticeable over time when used consistently with daily sun protection. They do not change your natural skin tone, and they are not a treatment for medical pigmentation conditions such as melasma. If marks are spreading, changing or worrying you, please see a dermatologist.
Who might consider it?
Kojic acid products may suit people with an established routine who want to address the look of uneven tone and who are prepared to introduce a new active gradually. It is not usually recommended as a first product for beginners, or for people whose skin reacts easily to actives.
Texture and feel
These details have not been confirmed. We will describe them from the finished product only.
How to use it
Directions for this product will appear here once its label is confirmed.
Do not exceed the frequency stated on the label. With actives like this, more is rarely better.
Where it fits in a routine
Appearance-focused actives are usually applied after cleansing and before moisturiser. Using several strong actives together, such as exfoliating acids and retinoids alongside kojic acid, can overwhelm the skin. Daily sunscreen is not optional: without it, uneven tone tends to return. Our guide to using kojic acid responsibly explains this in more depth.
Safety and suitability
Product-specific warnings will be published from the final label.
Kojic acid can cause contact dermatitis in some people. Patch test before regular use, avoid broken or irritated skin and the eye area, and stop at the first sign of persistent redness, itching or burning.
Ingredients
The full ingredient list will be published here from the final label before this product goes on sale.
Frequently asked questions
What concentration of kojic acid does this contain?
It will be stated on the confirmed label. We do not publish concentrations before then.
Can kojic acid treat melasma?
No cosmetic product treats a medical condition. Melasma should be assessed and managed by a dermatologist.
Can I use kojic acid with glycolic acid?
Some formulas combine them, but using separate products together can increase irritation. Wait for this product's directions and introduce one active at a time.
Does kojic acid lighten skin permanently?
No. Any change in the look of dark marks depends on continued use and sun protection, and natural skin tone is not altered.
Is it safe during pregnancy?
Please ask your doctor before using appearance-focused actives during pregnancy or breastfeeding. We will not make a pregnancy-safety claim.
A careful choice
Used patiently and with good sun habits, kojic acid can be a thoughtful addition to an established routine. Check back here for the confirmed label, size and price before you order.